Cushion-frame for cycles.



J. H. SAGER.

CUSHION FRAME FOR CYCLES.

APPLICATION FILED DEC, 30, 1912.

1,062,800. Patented May 27, 1913.

COLUMBIA PLANOGRADH o..wAsHlNuToN. D. c.

JAMES H. SAGER, OF ROCHESTER, NEW YORK.

CUSHION-FRAME FOR CYCLES.

Specification of Letters Patent.

Patented May 27 1913.

Application filed December 30, 1912. Serial No. 739,338.

To all whom 2'25 may concern:

Be it known that I, JAMES H. Saonn, a citizen of the United States, andresident of Rochester, in the county of Monroe and State of New York,have invented certain new and useful Improvements in Gushion Frames forCycles, of which the following is a specification.

This invention relates to frames for cycles,-

particularly for motor-cycles, of the type commonly described ascushion-frames,

tion is to produce a oushionframe adapted for use in a motor-bicycle inwhich a low saddle-position is required, the spring-mechanism being soarranged as to permit the use of springs of adequate length without anymodification of the general arrangement and construction of the framewhich experience has demonstrated to be most desirable in a motor-cycleof standard design.

To the foregoing ends the present invention consists in a cycle-frame inwhich the rear-stays are connected with a spring-mechanism arranged tomove in an inclined frame-member connecting the upper horizontalframe-member and the seat-mast, and in which the parts of thespring-mechanism are removable through the forward end of the inclinedframe-member, in the manner hereinafter set forth.

In the accompanying drawings :Figure 1 is a side-elevation of amotor-cycle frame embodying the present invention; Fig. 2 is a verticalsection, on a larger scale, of the portion of the frame in which thenovel features of construction are embodied; and Fig. 3 is a section onthe line 83 in Fig. 2.

The invention is illustrated as embodied in a motor-cycle frame of whichthe general design is familiar, this frame including the usual seat-mast5, upper horizontal member 6, lower rear-members or fork-sides 7, andupper rear-members 0r stays 8. As is usual in cushionframes, the members7 are pivotally mounted, at their forward ends, by a o-int located at oradjacent to the crankhanger 9. This oint may be formed, for eX- ample,in the manner illustrated in United States Letters Patent No. 973,217,granted to me October 18, 1910, or in any other usual or suitablemanner. The lower ends of the rear-stays 8 are also pivoted at 10 in theusual manner, to permit the necessary relative movements of the parts.

The present invention is embodied particularly in the means by which theupper ends of the rear-stays 8 are connected with the other parts of theframe. For this purpose the frame is provided with an inclined tubularmember 11, which connects the up per horizontal member 6 with theseat-mast 5, and constitutes also a casing and guide for thespring-mechanism. lVithin the member 11 is a slide 12, which fits themember 11 closely and moves longitudinally therein. This slide isconnected, by a transverse bolt 13, with the upper ends of therear-stays 8, and the bolt is provided, at its ends, with threadedbearing-sleeves 14, upon which the ends of the stays are looselypivoted. The bolt is provided also with lock-nuts 16 to fix the partstogether, and with slide-blocks 15, which move through lateral slots 17in the member 11. Two compression-springs 18 and 19 are inclosed withinthe member 11, respectively above and below the slide 12. The spring 18is adapted to cushion the forward movements of the slide and therearstays, while the spring 19 constitutes a recoilspring, so that theslide is cushioned in both directions, while being normally retained inan intermediate position as shown in the drawings.

The arrangement of the slide and the springs just described is somewhatsimilar to that disclosed in my patent above referred to, but in thatpatent the slide was arranged to move in the upper horizontal member ofthe frame, and the parts of the spring-mechanism were removable througha perforation in the rear of the seat-mast, being normally retained inplace by the removable saddle-post. In the present arrangement, however,particularly when used in connection with motor-cycles, it is notconvenient to remove the parts of the spring-mechanism in this manner,especially as it is common to mount the saddle of a motor-cycle withoutthe use of a removable saddle-post.

In the illustrated embodiment of the invention, therefore, the rear-endof the inclined frame-member 11 is shown as brazed into a fitting 20 towhich the upper end of the seatmast is also brazed, and this fittingalso comprises integrally a horizontally-extending stem 21, upon whichthe saddle may be mounted without the use .of a saddle-post. This memberalso constitutes a seat for the .lower end of the spring 19. To providefor ,the introduction andremoval of the parts of the. spring-mechanism,the forward end of themember 11 is brazed into a fitting 22,by which itis connected with the upper framemember 6, and it passes completelythrough this fitting, so that its forward end projects 1 above theframe-member 6. At this point a screw-threaded cap 23 is provided, toclose the endof the member 11 and constitute a seat for the forward endof thespring 18. Upon removing this cap and disengaging thebolt 13 fromthe slide the springs and the slide may be removed from ,or replaced inthe member 11, so that in case of the breakage of, a spring the partsmay be disassembled anda new spring substituted without the necessity ofremoving the saddle or disassembling any other part of the machineAnother advantage of the arrangement above described resides in the factthat the frame-member 11 may be arranged to extend in, a line parallelwith the rear-stays 8, so that the thrust upon the slide 12 is direct,and lateral thrust and friction in the springmechanism are elilninte'd.

[My invention is not limited to the embodiment thereof hereinbefore'described and illustrated in the accompanying drawings, butmay beembodied in various other forms within the. nature of the invention, asit is defined in the following claims.

:I claim 1.: In a cycle-frame comprising inclined rear-stays, aseat-mast and a horizontal ,upp er frame-member, an inclined tubularmember connecting the seat-mast and the horizontal upper frame-member,and pro vided with lateral slots, said inclined member extending in aline substantially parallel ,with the rear-stays, spring-mechanismintending above the horizontal upper framemember, a removable closurefor the forward end of the spring-receiving chamber, a spring in saidchamber, and connect-ions between the spring and the upper ends of therear-stays, the inclined frame-member being slotted for the passage ofsaid connections.

3. In a cycle-frame comprising inclined rear-stays, a seat-mast and ahorizontal upper frame-member, an inclined tubular member connecting theseat-mast and the horizontal upper member and laterally slotted, afitting receiving and closing the upper end of the seat-mast and therear end of said inclined member, and provided with an integral,rearwardly-extending saddle-supporting member, a fitting receiving theforward end of the inclined frame-member and the rear end of the upperhorizontal framemember, a screw-threaded cap closing the forward end ofthe inclined frame-member, springs and a spring-controlled slide movablewithin said inclined member, and connections between the slide and theupper ends 7 of the rear-stays, said connections passing through theslots in the incllned member.

JAMES H. SAGER.

Witnesses:

C. S. DAVIS, D. GURNEE.

: Copies oi this patent may be obtained for five cents each, byaddressing the Commissioner of Batents,

Washington. D. C.

